A New Hampshire state trooper has pleaded guilty to one count of a false report after he placed a GPS tracker on his girlfriend’s car and then lied about it to Keene police. New Hampshire Attorney General John Formella announced Thursday that James Lamoureux, 43, of Keene, has resigned and will surrender his law enforcement certification. He pleaded guilty as part of a negotiated deal that involves a six-month prison sentence – fully suspended for two years. He later asked an acquaintance to provide false information concerning the tracking devices to the Keene police, according to the Attorney General’s office. The Public Integrity & White-Collar Crime Unit of the state Attorney General’s office prosecuted the case.